Volume 2,deel 1 — Rock-forming Minerals,

: Each chapter begins with a data summary and a sketch showing optical orientation or stereographic projections.

: It serves as a "bible" for advanced students and professional research workers in mineralogy, petrology, and geochemistry. Rock-forming minerals, Volume 2,Deel 1

: Data on refractive indices, optic axial angles, and density, often correlated with chemical composition. : Each chapter begins with a data summary

: Descriptions of atomic structure and X-ray methods for identification. optic axial angles